| // RUN: %target-swift-frontend %s -emit-ir | %FileCheck %s --check-prefix=CHECK |
| |
| // REQUIRES: CPU=x86_64 |
| |
| public class Base { |
| public func m1() {} |
| public func m2() {} |
| } |
| |
| public class Derived<T> : Base { |
| public override func m2() {} |
| public func m3() {} |
| } |
| |
| public class Concrete : Derived<Int> { |
| public override func m3() {} |
| public func m4() {} |
| } |
| |
| |
| //// Nominal type descriptor for 'Base' does not have any method descriptors. |
| |
| // CHECK-LABEL: @_T014generic_vtable4BaseCMn = {{(protected )?}}constant |
| // -- nesting depth |
| // CHECK-SAME: i16 1, |
| // -- flags: has vtable |
| // CHECK-SAME: i16 4, |
| // -- generic parameters at depth 0 |
| // CHECK-SAME: i32 0, |
| // -- vtable offset |
| // CHECK-SAME: i32 10, |
| // -- vtable size |
| // CHECK-SAME: i32 3 |
| // -- no method descriptors -- class is fully concrete |
| // CHECK-SAME: section "{{.*}}", align 8 |
| |
| //// Type metadata for 'Base' has a static vtable. |
| |
| // CHECK-LABEL: @_T014generic_vtable4BaseCMf = internal global |
| // -- vtable entry for 'm1()' |
| // CHECK-SAME: void (%T14generic_vtable4BaseC*)* @_T014generic_vtable4BaseC2m1yyF |
| // -- vtable entry for 'm2()' |
| // CHECK-SAME: void (%T14generic_vtable4BaseC*)* @_T014generic_vtable4BaseC2m2yyF |
| // -- vtable entry for 'init()' |
| // CHECK-SAME: %T14generic_vtable4BaseC* (%T14generic_vtable4BaseC*)* @_T014generic_vtable4BaseCACycfc |
| // -- |
| // CHECK-SAME: , align 8 |
| |
| |
| //// Nominal type descriptor for 'Derived' has method descriptors. |
| |
| // CHECK-LABEL: @_T014generic_vtable7DerivedCMn = {{(protected )?}}constant |
| // -- nesting depth |
| // CHECK-SAME: i16 1, |
| // -- flags: has vtable |
| // CHECK-SAME: i16 4, |
| // -- generic parameters at depth 0 |
| // CHECK-SAME: i32 1, |
| // -- vtable offset |
| // CHECK-SAME: i32 14, |
| // -- vtable size |
| // CHECK-SAME: i32 1, |
| // -- vtable entry for m3() |
| // CHECK-SAME: void (%T14generic_vtable7DerivedC*)* @_T014generic_vtable7DerivedC2m3yyF |
| // -- |
| // CHECK-SAME: section "{{.*}}", align 8 |
| |
| //// Type metadata pattern for 'Derived' has an empty vtable, filled in at |
| //// instantiation time. |
| |
| // CHECK-LABEL: @_T014generic_vtable7DerivedCMP = internal global <{{.*}}> <{ |
| // -- nominal type descriptor |
| // CHECK-SAME: @_T014generic_vtable7DerivedCMn, |
| // -- ivar destroyer |
| // CHECK-SAME: i8* null |
| // -- |
| // CHECK-SAME: }>, align 8 |
| |
| |
| //// Nominal type descriptor for 'Concrete' has method descriptors. |
| |
| // CHECK-LABEL: @_T014generic_vtable8ConcreteCMn = {{(protected )?}}constant |
| // -- nesting depth |
| // CHECK-SAME: i16 1, |
| // -- flags: has vtable |
| // CHECK-SAME: i16 4, |
| // -- generic parameters at depth 0 |
| // CHECK-SAME: i32 0, |
| // -- vtable offset |
| // CHECK-SAME: i32 15, |
| // -- vtable size |
| // CHECK-SAME: i32 1, |
| // -- vtable entry for m4() |
| // CHECK-SAME: void (%T14generic_vtable8ConcreteC*)* @_T014generic_vtable8ConcreteC2m4yyF |
| // -- |
| // CHECK-SAME: section "{{.*}}", align 8 |
| |
| //// Type metadata for 'Concrete' does not have any vtable entries; the vtable is |
| //// filled in at initialization time. |
| |
| // CHECK-LABEL: @_T014generic_vtable8ConcreteCMf = internal global <{{.*}}> <{ |
| // -- nominal type descriptor |
| // CHECK-SAME: @_T014generic_vtable8ConcreteCMn, |
| // -- ivar destroyer |
| // CHECK-SAME: i8* null |
| // -- |
| // CHECK-SAME: }>, align 8 |
| |
| |
| //// Metadata initialization function for 'Derived' copies superclass vtable |
| //// and installs overrides for 'm2()' and 'init()'. |
| |
| // CHECK-LABEL: define private %swift.type* @create_generic_metadata_Derived(%swift.type_pattern*, i8**) |
| |
| // - 2 immediate members: |
| // - type metadata for generic parameter T, |
| // - and vtable entry for 'm3()' |
| // CHECK: [[METADATA:%.*]] = call %swift.type* @swift_allocateGenericClassMetadata(%swift.type_pattern* %0, i8** %1, {{.*}}, i64 2) |
| |
| // CHECK: call void @swift_initClassMetadata_UniversalStrategy(%swift.type* [[METADATA]], i64 0, {{.*}}) |
| |
| // -- method override for 'm2()' |
| // CHECK: [[WORDS:%.*]] = bitcast %swift.type* [[METADATA]] to i8** |
| // CHECK: [[VTABLE0:%.*]] = getelementptr inbounds i8*, i8** [[WORDS]], i32 11 |
| // CHECK: store i8* bitcast (void (%T14generic_vtable7DerivedC*)* @_T014generic_vtable7DerivedC2m2yyF to i8*), i8** [[VTABLE0]], align 8 |
| |
| // -- method override for 'init()' |
| // CHECK: [[VTABLE1:%.*]] = getelementptr inbounds i8*, i8** [[WORDS]], i32 12 |
| // CHECK: store i8* bitcast (%T14generic_vtable7DerivedC* (%T14generic_vtable7DerivedC*)* @_T014generic_vtable7DerivedCACyxGycfc to i8*), i8** [[VTABLE1]], align 8 |
| |
| // CHECK: ret %swift.type* [[METADATA]] |
| |
| |
| //// Metadata initialization function for 'Concrete' copies superclass vtable |
| //// and installs overrides for 'init()' and 'm3()'. |
| |
| // CHECK-LABEL: define private void @initialize_metadata_Concrete(i8*) |
| // CHECK: [[SUPERCLASS:%.*]] = call %swift.type* @_T014generic_vtable7DerivedCySiGMa() |
| // CHECK: store %swift.type* [[SUPERCLASS]], %swift.type** getelementptr inbounds {{.*}} @_T014generic_vtable8ConcreteCMf |
| // CHECK: [[METADATA:%.*]] = call %swift.type* @swift_relocateClassMetadata({{.*}}, i64 96, i64 1) |
| // CHECK: call void @swift_initClassMetadata_UniversalStrategy(%swift.type* [[METADATA]], i64 0, {{.*}}) |
| |
| // -- method override for 'init()' |
| // CHECK: store i8* bitcast (%T14generic_vtable8ConcreteC* (%T14generic_vtable8ConcreteC*)* @_T014generic_vtable8ConcreteCACycfc to i8*), i8** |
| |
| // -- method override for 'm3()' |
| // CHECK: store i8* bitcast (void (%T14generic_vtable8ConcreteC*)* @_T014generic_vtable8ConcreteC2m3yyF to i8*), i8** |
| |
| // CHECK: store atomic %swift.type* [[METADATA]], %swift.type** @_T014generic_vtable8ConcreteCML release, align 8 |
| // CHECK: ret void |
